Clean Markdown Whitespace & Fix Indentation

Markdown files accumulate whitespace problems over time — mixed tabs and spaces, inconsistent list indentation, trailing whitespace, and irregular blank lines. These issues may not be visible when editing, but they cause rendering problems: lists that don't nest correctly, code blocks that break out of their containers, and paragraphs that merge unexpectedly.

This tool helps you normalize whitespace in Markdown content. Paste your Markdown text, adjust the indentation settings, and copy the cleaned version.

Markdown is a whitespace-sensitive format. The number of spaces before a list marker determines its nesting level. The presence of a blank line between paragraphs determines whether text flows together or separates. Four spaces at the beginning of a line triggers a code block.

When multiple contributors edit the same Markdown file — especially across different editors with different tab settings — whitespace inconsistencies accumulate. Some editors insert tabs, others insert spaces. Some auto-trim trailing whitespace, others do not. The result is a file that looks fine in one editor but renders incorrectly on GitHub, documentation sites, or static site generators.

Regularly cleaning whitespace prevents these rendering issues and keeps Markdown files consistent and portable across editors and platforms.